unisonic technologies co., ltd u74lvc1g14 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2009 unisonic technologies co., ltd qw-r502-081.e single schmitt-trigger inverter ? description the utc u74lvc1g14 is a single schmitt-trigger inverter, it provides the function y= a . the device have different input threshold levels for positive- going (v t+ ) and negative-going(v t- ) signals because of the schmitt-trigger action in the input. this device has power-down protective circuit, preventing device destruction when it is powered down. ? features * operation voltage range: 1.65v~5.5v * low power dissipation: i cc =10 a(max) * 24ma output drive(v cc =3.0v) * high noise immunity * power down protection ? ordering information ordering number lead free halogen free package packing u74lvc1g14l-af5-r u74lvc1g14g-af5-r sot-25 tape reel U74LVC1G14L-AL5-R u74lvc1g14g-al5-r sot-353 tape reel ? marking 4 5 3 2 1 3a4 l: lead free g: halogen free sot-25 sot-353
u74lvc1g14 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-081.e ? pin configuration ? function table (each gate) input output a y l h h l ? logic diagram (positive logic)
u74lvc1g14 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-081.e ? absolute maximum rating (unless otherwise specified) parameter symbol ratings unit supply voltage v cc -0.5~+6.5 v input voltage v in -0.5~+6.5 v output voltage(active mode) v out -0.5~v cc +0.5 v output voltage(power-down mode) v out -0.5~+6.5 v input clamp current(v in <0) i ik -50 ma output clamp current(v out <0) i ok 50 ma output current i out 50 ma v cc or gnd current i cc 100 ma storage temperature t stg -65 ~ +150 c note: absolute maximum ratings are those values beyo nd which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit sot-25 206 c/w junction to ambient sot-353 ja 142 c/w ? recommended operating conditions parameter symbol min typ max unit supply voltage v cc 1.65 5.5 v input voltage v in 0 5.5 v output voltage v out 0 v cc v operating temperature t a -40 +85 c ? electrical characteristics parameter symbol test conditions min typ max unit v cc =1.8v 0.82 1 1.14 v v cc =2.3v 1.03 1.2 1.40 v v cc =3.0v 1.29 1.5 1.71 v v cc =4.5v 1.84 2.1 2.36 v positive-going input threshold voltage v t+ v cc =5.5v 2.19 2.5 2.79 v v cc =1.8v 0.46 0.6 0.75 v v cc =2.3v 0.65 0.8 0.96 v v cc =3.0v 0.88 1 1.24 v v cc =4.5v 1.32 1.5 1.84 v negative-going input threshold voltage v t- v cc =5.5v 1.58 1.8 2.24 v v cc =1.8v 0.26 0.4 0.51 v v cc =2.3v 0.28 0.4 0.57 v v cc =3.0v 0.31 0.5 0.64 v v cc =4.5v 0.40 0.6 0.77 v hysteresis voltage (v t+ -v t- ) v t v cc =5.5v 0.47 0.6 0.88 v v cc =1.65v ~ 5.5v, i oh =-100 a v cc -0.1 v v cc =1.65v, i oh =-4ma 1.2 1.54 v v cc =2.3v, i oh =-8ma 1.9 2.15 v v cc =2.7v, i oh =-12ma 2.2 2.50 v v cc =3.0v, i oh =-24ma 2.3 2.62 v high-level output voltage v oh v cc =4.5v, i oh =-32ma 3.8 4.11 v
u74lvc1g14 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-081.e ? electrical characteristics (cont.) parameter symbol test conditions min typ max unit v cc =1.65v ~ 4.5v, i ol =100 a 0.1 v v cc =1.65v, i ol =4ma 0.07 0.45 v v cc =2.3v, i ol =8ma 0.12 0.3 v v cc =2.7v, i ol =12ma 0.17 0.4 v v cc =3.0v, i ol =24ma 0.33 0.55 v low-level output voltage v ol v cc =4.5v, i ol =32ma 0.39 0.55 v input leakage current i i(leak) v cc =0v ~ 5.5v, v in =v cc or gnd 0.1 5 a power off leakage current i off v cc =0v, v in or v cc =5.5v 0.1 10 a quiescent supply current i q v cc =1.65v ~ 5.5v, v in =5.5v or gnd i out =0 0.1 10 a additional quiescent supply current i q v cc =2.3v ~ 5.5v, one input at v cc -0.6v, other inputs at v cc or gnd 5 500 a input capacitance c in v cc =3.3v, v in =v cc or gnd 5 pf ? dynamic characteristics parameter symbol v cc (v) c l r l min typ max unit 1.65~1.95 30pf 1k ? 1.0 4.1 11 ns 2.3~2.7 30pf 500 ? 0.7 2.8 6.5 ns 2.7 50pf 500 ? 0.7 3.2 6.5 ns 3.0~3.6 50pf 500 ? 0.7 3.0 5.5 ns propagation delay from input (a or b) to output(y) t plh /t phl 4.5~5.5 50pf 500 ? 0.7 2.2 5.0 ns operating characteristics power dissipation capacitance cpd 3.3 v in = gnd to v cc 15.4 pf
u74lvc1g14 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-081.e ? test circuit and waveforms note: c l includes probe and jig capacitance. v cc v in t r , t f v m c l r l 1.65v~1.95v v cc 2ns 2 v cc 30pf 1k ? 2.3v~2.7v v cc 2ns 2 v cc 30pf 500 ? 2.7v 2.7v 2.5ns 1.5v 50pf 500 ? 3.0v~3.6v 2.7v 2.5ns 1.5v 50pf 500 ? 4.5v~5.5v v cc 2.5ns 2 v cc 50pf 500 ? utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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